package org.framework.common.ext.filter;

import java.io.IOException;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.filter.OncePerRequestFilter;

/**
 * Servlet Filter implementation class CrossDomainFilter
 */
@WebFilter("/*")
public class CrossDomainFilter extends OncePerRequestFilter {

	@Override
	protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws ServletException, IOException {
		response.setHeader("Access-Control-Allow-Origin", "*");
	    response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
	    response.setHeader("Access-Control-Max-Age", "1800"); // 30秒
	    response.setHeader("Access-Control-Allow-Headers", "x-requested-with");
		chain.doFilter(request, response);
	}
}
